CN110024346A

CN110024346A - Method and sending ending equipment for data processing

Info

Publication number: CN110024346A
Application number: CN201680091289.XA
Authority: CN
Inventors: 李强; 姜彤
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2016-11-30
Filing date: 2016-11-30
Publication date: 2019-07-16
Anticipated expiration: 2036-11-30
Also published as: WO2018098646A1; CN110024346B

Abstract

The embodiment of the present application provides a kind of method and sending ending equipment for data processing, is able to solve the problem of OFDM symbol that data to be transmitted includes can not be matched, this method comprises: it includes N that sending ending equipment, which generates,₁The data to be transmitted of a orthogonal frequency division multiplex OFDM symbol, the N₁For positive integer；The sending ending equipment is handled the data to be transmitted using the first algorithm, the data to be transmitted is divided into M data segment, the M is the maximum data fluxion for sending the data to be transmitted, the M data segment includes that the quantity for the OFDM symbol that the first data segment to M data section, the Nth data section of first data segment into M data section includes is (2^M‑N+1- 1) integral multiple；If the quantity for the OFDM symbol that the Nth data section includes is greater than zero, which sends the Nth data section by the M-N+1 data flow.

Description

Method and sending end equipment for data processing

Technical Field

The present application relates to the field of communications, and more particularly, to a method and a transmitting end device for data processing.

Background

Orthogonal Frequency Division Multiplexing (OFDM) is a modulation technique widely used in radio communications. Fig. 1 shows a process of generating an OFDM signal, where an input bit stream is first subjected to channel coding, then the coded bit stream is subjected to Quadrature Amplitude Modulation (QAM), mapped into constellation point symbols, then subjected to serial-to-parallel conversion to convert the constellation point symbols sent serially into constellation point symbols sent in parallel, and then the parallel constellation point symbols are respectively modulated onto a set of subcarriers, and then subjected to Inverse Fast Fourier Transform (IFFT) and cyclic prefix adding processes, so as to obtain a final OFDM signal. Therefore, the former part of the OFDM signal is a cyclic prefix, and the latter part is an OFDM symbol carrying data.

OFDM technology is commonly applied in radio communication systems, but may also be applied in communication systems of other carriers, such as optical fiber based communication systems and visible light communication systems. In the visible Light communication system, a sending end device may use a Light-Emitting Diode (LED) lamp as an output of a signal, and a receiving end device uses a photoelectric converter as a receiver. The sending end device may transmit information by modulating the intensity of the LED lamp, which is called intensity modulation. Since the object of modulation is the intensity of the LED lamp, the signal used for modulation must be real rather than complex, and must be a unipolar signal greater than or equal to zero rather than a bipolar signal. The ODFM signal generated according to the method shown in fig. 1 is composed of complex numbers, i.e. the OFDM symbol has both real and imaginary parts, and the OFDM symbol is bipolar, i.e. the OFDM symbol has positive and negative values. Therefore, the requirement of a communication system requiring intensity modulation cannot be satisfied.

In the prior art, Enhanced Unipolar OFDM (abbreviated as EU-OFDM) provides a method for converting a conventional OFDM symbol into a real and Unipolar signal, in which an input bit stream is divided into N data streams (streams) and processed to obtain a final real and Unipolar OFDM signal, where N is a positive integer. However, the EU-OFDM technique is required to satisfy the condition that the number of OFDM symbols transmitted through N streams is required to be 2^N-an integer multiple of 1. For example, when transmitting by 2 streams, the number of OFDM symbols needs to be an integer multiple of 3; when transmitting through 3 streams, the number of OFDM symbols needs to be an integer multiple of 7; when transmitting through 4 streams, the number of OFDM symbols needs to be an integer multiple of 15.

In practical networks, data is usually sent in a frame (frame) format, and a frame includes three parts, namely a preamble sequence, a header and data. The header is used for transmitting control information, the number of streams can be included in the header, and the data portion is used for carrying real data. Wherein both the header and the data portion are comprised of a plurality of OFDM symbols.

When data transmission is actually performed, the length of the OFDM symbols included in the data portion of one frame is random, and the length depends on the amount of data that needs to be transmitted currently, so that it cannot be guaranteed that the OFDM symbols that need to be transmitted are integer multiples of a specific numerical value, and therefore, when data transmission is performed by using eU-OFDM, there is a case where the OFDM symbols to be transmitted cannot be paired according to the number of designated streams.

Disclosure of Invention

The embodiment of the application provides a method for data processing and sending end equipment, which can solve the problem that OFDM symbols included in data to be transmitted cannot be paired.

In a first aspect, a method for data processing is provided, the method comprising: the sending end equipment generates N₁Data to be transmitted of OFDM symbols, N₁Is a positive integer; the transmitting endThe device processes the data to be transmitted by adopting a first algorithm, divides the data to be transmitted into M data segments, wherein M is the maximum data stream number for sending the data to be transmitted, the M data segments comprise a first data segment to an Mth data segment, and the quantity of OFDM symbols included in the Nth data segment from the first data segment to the Mth data segment is (2)^M-N+1-an integer multiple of 1); if the number of OFDM symbols included in the nth data segment is greater than zero, the sending end device sends the nth data segment through the M-N +1 data streams.

It should be understood that the nth data segment is a data segment capable of being paired into M-N +1 data streams, that is, the first data segment is a data segment capable of being paired into M data streams, the second data stream is a data segment capable of being paired into M-1 data streams, and the mth data stream is a data segment capable of being paired into 1 data stream, so that the first data segment can be transmitted through M data streams, the second data segment can be transmitted through M-1 data streams, and the mth data segment can be transmitted through 1 data stream.

It should also be understood that there may be data segments of which the number of OFDM symbols included in the first to mth data segments is zero, and optionally, when the number of OFDM symbols included in a certain data segment is zero, the transmitting end device does not transmit the data segment, otherwise, when the number of OFDM symbols included in the nth data segment of the first to mth data segments is not zero, the transmitting end device transmits the nth data segment through M-N +1 data streams. For example, the first data segment is transmitted through M data streams, the second data stream is transmitted through M-1 data streams, and the mth data segment is transmitted through 1 data stream.

Particularly, when the numbers of the OFDM symbols included in the second data segment to the mth data segment are all zero, that is, the number of the OFDM symbols included in only the first data segment of the M data segments is not zero, it may be considered that the data to be transmitted may be paired into M data streams, that is, the data to be transmitted may be transmitted through the M data streams.

Therefore, in the method for data processing in the embodiment of the application, the sending end device may divide the data to be transmitted into M data segments, and then send the nth data segment through the M-N +1 data streams, so that a problem that OFDM symbols included in the data to be transmitted cannot be paired can be solved.

In one possible implementation, the method further includes: and if the number of the OFDM symbols included in the Nth data segment is equal to zero, the sending end equipment does not send the Nth data segment.

That is, the transmitting end device does not transmit the nth data segment when it is determined that the number of OFDM symbols included in the nth data segment is zero.

In one possible implementation, the nth data segment includes K_N×(2^M-N+1-1) OFDM symbols of a plurality of OFDM symbols,

where the floor is a round-down operation, and the N is 1,2, …, M.

In a possible implementation manner, the sending end device sends the nth data segment through the M-N +1 data streams, including: the transmitting terminal device equally divides the Nth data segment into K_NA sub-data segment, wherein the kth sub-data segment includes the (k-1) (2)^M-N+1-1) +1 to k × (2)^M-N+1-1) OFDM symbols, K being 1,2, …, K_N(ii) a The sending terminal equipment processes each sub data segment by adopting an EU-OFDM algorithm; and the sending end equipment sequentially sends each processed subdata segment through the M-N +1 data streams.

In a possible implementation manner, a data frame sent by the sending end device to the receiving end device may include the number N of OFDM symbols included in the data to be transmitted₁And the maximum data stream number M for transmitting the data to be transmitted.

Optionally, the data to be transmitted includes a number N of OFDM symbols₁And the maximum data stream number M for transmitting the data to be transmitted may be carried in the header portion of the data frame, where the number N of OFDM symbols included in the data to be transmitted₁May be regarded as length information of the data to be transmitted. Optionally, the length information of the data to be transmitted may also be the number of bytes of the data to be transmitted, the length information of the data to be transmitted, and the maximum number of data streams for sending the data to be transmittedM is used for the receiving end device to demodulate the original data in the data frame, where the original data is the bitstream data that the sending end device needs to send.

In a possible implementation manner, the data frame further includes algorithm indication information, where the algorithm indication information indicates that the sending-end device uses a first algorithm to process the data to be transmitted.

In a second aspect, there is provided a method for data processing, the method comprising: the sending end equipment generates N₁Data to be transmitted of OFDM symbols, N₁Is a positive integer; the sending end equipment processes the data to be transmitted by adopting a second algorithm, and the N is₁Supplementing zero or invalid bits after one OFDM symbol enables the number of the supplemented OFDM symbols included in the data to be transmitted to be divided by 2^M-1, M being the maximum number of data streams used for transmitting the data to be transmitted; and the sending end equipment sends the supplemented data to be transmitted through the M data streams.

Therefore, according to the method for processing data in the embodiment of the application, when the sending-end device can supplement zero or invalid bits after the data to be transmitted, the number of OFDM symbols included in the supplemented data to be transmitted can be paired into M data streams, and then the sending-end device sends the supplemented data to be transmitted through the M data streams, so that the problem that the OFDM symbols included in the data to be transmitted cannot be paired can be solved.

In one possible implementation, the method further includes: the sending end device sends the supplemented data to be transmitted through the M data streams, including: the sending end equipment averagely divides the supplemented data to be transmitted into K sub-data segments, wherein K is the number of OFDM symbols included in the supplemented data to be transmitted divided by 2^M-1, the kth sub-data segment comprising the (k-1) (2)^M-1) +1 to k × (2)^M-1) OFDM symbols; the sending terminal equipment processes each sub data segment by adopting an EU-OFDM algorithm; and the sending end equipment sequentially sends each processed subdata segment through the M data streams.

In a possible implementation manner, the data frame sent by the sending end device to the receiving end device includes the number N of OFDM symbols included in the data to be transmitted₁And the maximum data stream number M for transmitting the data to be transmitted.

Optionally, the header portion of the data frame may include length information of the data to be transmitted and a maximum data stream number M for sending the data to be transmitted, where the length information of the data to be transmitted may be the number N of OFDM symbols included in the data to be transmitted₁Or the number of bytes included in the data to be transmitted, or the length information of the data to be transmitted and the maximum data stream number M for sending the data to be transmitted may be used by the receiving end device to demodulate the original data in the data frame, where the original data is the bit stream data that needs to be sent by the sending end device.

In a third aspect, a method for data processing is provided, the method comprising: the sending end equipment generates N₁The number of data to be transmitted of OFDM symbols, N₁Is a positive integer; the sending end equipment processes the data to be transmitted by adopting a third algorithm, wherein the third algorithm comprises that the sending end enables the number of OFDM symbols included in the adjusted data to be transmitted to be divided by 2 by adjusting the coding rate^M-1, M being the maximum number of data streams used for transmitting the data to be transmitted; and the sending end equipment sends the adjusted data to be transmitted through the M data streams.

Therefore, in the method for processing data according to the embodiment of the application, the sending end device can make the number of the OFDM symbols included in the adjusted data to be transmitted be capable of being paired into M data streams by adjusting the coding rate, and then the sending end device sends the adjusted data to be transmitted through the M data streams, so that the problem that the OFDM symbols included in the data to be transmitted cannot be paired can be solved.

Optionally, the sending-end device may employ a method of reducing the encoder rate, so that the adjusted data to be transmitted can be paired into M data streams.

Optionally, the sending end device may also adopt a method of increasing the encoder rate, so that the adjusted data to be transmitted can be paired into M data streams.

Optionally, the sending-end device may also use a signal repetition mode to enable the adjusted data to be transmitted to be paired into M data streams.

Optionally, the sending end device may also use a manner of puncturing data (i.e. deleting part of data) to enable the adjusted data to be transmitted to be paired into M data streams,

in a possible implementation manner, the sending end device sends the adjusted data to be transmitted through the M data streams, including: the sending end equipment averagely divides the adjusted data to be transmitted into K sub-data sections, wherein K is the number of OFDM symbols included by the adjusted data to be transmitted divided by 2^M-1, the kth sub-data segment comprising the (k-1) (2)^M-1) +1 to k × (2)^M-1) OFDM symbols; the sending end equipment processes each sub data segment by adopting an EU-OFDM algorithm; and the sending end equipment sequentially sends each processed subdata segment through the M data streams.

In a possible implementation manner, the data frame sent by the sending end device to the receiving end device includes the number of OFDM symbols included in the adjusted to-be-transmitted data, the adjusted coding rate, and the maximum data stream number M for sending the to-be-transmitted data.

In a possible implementation manner, the data frame further includes algorithm indication information, and the algorithm indication information indicates that the sending-end device processes the data to be transmitted by using a third algorithm.

In this implementation manner, the algorithm indication information may indicate which algorithm the sending-end device processes the data to be transmitted through, and the algorithm indication information may be used by the receiving-end device to adopt a corresponding demodulation method according to the algorithm indication information.

In a fourth aspect, a sending end device is provided, configured to perform the method in any possible implementation manner of the first aspect, the first aspect. In particular, the sending end device may include means for performing the method in any possible implementation manner of the first aspect, the first aspect.

In a fifth aspect, a sending end device is provided, configured to execute the second aspect, the method in any possible implementation manner of the second aspect. In particular, the sending end device may include means for performing the second aspect, the method in any possible implementation manner of the second aspect.

A sixth aspect provides a sending end device, configured to perform the method in any possible implementation manner of the third aspect. Specifically, the sending end device may include means for performing the method in any possible implementation manner of the third aspect, or the third aspect.

In a seventh aspect, a sending end device is provided, which includes a memory and a processor, the memory is configured to store instructions, the processor is configured to execute the instructions stored in the memory, and execution of the instructions stored in the memory causes the processor to execute the method in the first aspect, any possible implementation manner of the first aspect.

In an eighth aspect, there is provided a transmitting end device, comprising a memory for storing instructions and a processor for executing the instructions stored in the memory, wherein the execution of the instructions stored in the memory causes the processor to perform the method of the second aspect, any possible implementation manner of the second aspect.

In a ninth aspect, there is provided a transmitting end device, comprising a memory for storing instructions and a processor for executing the instructions stored in the memory, wherein execution of the instructions stored in the memory causes the processor to perform the method of the third aspect, any possible implementation manner of the third aspect.

A tenth aspect provides a computer-readable storage medium storing a computer program comprising instructions for performing the method of any one of the first to the third aspects or any possible implementation of the first to the third aspects.

Based on the foregoing technical solution, in the method for data processing in the embodiment of the present application, the sending end device may divide the data to be transmitted into M data segments, where the number of OFDM symbols included in an nth data segment of the M data segments is (2)^M-N+1-1), and then when the number of OFDM symbols included in the nth data segment is greater than zero, transmitting the nth data segment through the M-N +1 data streams, thereby solving the problem that the OFDM symbols included in the data to be transmitted cannot be paired.

Drawings

Fig. 1 is a flowchart of a process of generating an OFDM signal in the related art.

Fig. 2 is a schematic diagram of an application scenario applicable to the embodiment of the present application.

FIG. 3 is a schematic flow chart diagram of a method for data processing according to an embodiment of the present application.

Fig. 4 is a schematic diagram of data to be transmitted after being processed by the EU-OFDM algorithm.

FIG. 5 is a schematic flow chart diagram of a method for data processing according to another embodiment of the present application.

FIG. 6 is a schematic flow chart diagram of a method for data processing according to yet another embodiment of the present application.

Fig. 7 is a schematic block diagram of a transmitting end device according to an embodiment of the present application.

Fig. 8 is a schematic block diagram of a transmitting end device according to another embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

The technical scheme of the application can be applied to various communication systems needing intensity modulation, such as: the present invention is not limited to the embodiments of the present application, and may also be applied to a visible light communication system, an optical fiber-based communication system, or the like, or other systems that need to generate real unipolar OFDM signals.

Fig. 2 shows a schematic diagram of a communication system suitable for the embodiment of the present application, and as shown in fig. 2, the communication system may include a sending end device 210 and a receiving end device 220.

The transmitting end device 210 and the receiving end device 220 may be devices in a visible light communication system, or may also be devices in other communication systems that need intensity modulation, and the like, which is not particularly limited in this embodiment of the present application.

The sending-end device 210 may be an LED lamp, or other devices capable of transmitting information by emitting light, and the like, which is not limited in this embodiment of the application.

The receiving end device 220 may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with a Wireless communication function, a computing device, or other processing devices connected to a Wireless modem, a vehicle-mounted device, a wearable device, etc., which is not limited in this embodiment.

It should be noted that, in the embodiment of the present application, the OFDM symbols cannot be paired into M data streams or the OFDM symbols cannot be transmitted through M data streams, which means that the number of OFDM symbols cannot be divided by 2^M-1, or the number of OFDM symbols is not 2^M-an integer multiple of 1.

Hereinafter, a method for data processing according to an embodiment of the present application will be described in detail with reference to fig. 3, 5, and 6.

It should be understood that fig. 3, 5 and 6 are schematic flow charts of the method for data processing of the embodiments of the present application, showing detailed communication steps or operations of the method, but these steps or operations are merely examples, and the embodiments of the present application may also perform other operations or variations of the various operations in fig. 3, 5 and 6. Moreover, the various steps in fig. 3, 5, and 6 may be performed in a different order than presented in fig. 3, 5, and 6, respectively, and it is possible that not all of the operations in fig. 3, 5, and 6 may be performed.

FIG. 3 shows a schematic flow chart of a method 300 for data processing according to an embodiment of the present application. The method 300 may be applied to the communication system shown in fig. 2.

As shown in fig. 3, the method 300 includes the steps of:

s310, the sending end equipment generates a message including N₁Data to be transmitted of OFDM symbols, N₁Is a positive integer.

Specifically, the original data that the sending end device needs to send to the receiving end device is a bit stream, before sending the bit stream to the receiving end device, the sending end device first performs channel coding on the bit stream by using a certain code rate, then performs QAM modulation on the coded bit stream to generate a QAM symbol, and then maps the generated QAM symbol to a subcarrier to generate a symbol including N₁Data to be transmitted for each OFDM symbol. Therefore, the sending end device can estimate the number of OFDM symbols generated after the bit stream is mapped onto the subcarriers according to information such as code rate, QAM modulation order, and number of subcarriers. For example, if the sender apparatus has 1000 bits to send, encodes with a code rate of 1/2, and modulates with a modulation order of 16QAM, such that the number of bits output by the encoder is 2000 bits, and after 16QAM modulation is performed (each 16QAM symbol may carry information of 4 bits), the number of bits is 2000/4 — 500 16QAM symbols, and assuming that each OFDM symbol has 128 subcarriers and 50 subcarriers are available, each OFDM symbol may carry 50 16QAM symbols. So that the data to be transmitted finally includes N₁500/50 is 10 OFDM symbols.

S320, the sending end equipment processes the data to be transmitted by adopting a first algorithm, and divides the data to be transmitted into M data segments, wherein M is the maximum data stream number for sending the data to be transmittedThe M data segments include first to Mth data segments, and the Nth data segment of the first to Mth data segments includes OFDM symbols of which the number is (2)^M-N+1-1) integer multiples.

Specifically, the sending end device divides the data to be transmitted into M data segments, including a first data segment to an M-th data segment, where the number of OFDM symbols included in an nth data segment of the first data segment to the M-th data segment is (2)^M-N+1-1), that is to say the nth data segment can be paired into M-N +1 data streams, in particular the first data stream can be paired into M data streams, the second data segment can be paired into M-1 data streams, and the mth data segment can be paired into 1 data stream. Therefore, the nth data segment may be transmitted through M-N +1 data streams, that is, the first data segment may be transmitted through M data streams, the second data segment may be transmitted through M-1 data streams, and the mth data segment may be transmitted through 1 data stream. E.g. N₁For 26, M is 4, that is, the data to be transmitted includes 26 OFDM symbols, and the maximum number of data streams for transmitting the 26 OFDM symbols is 4, then the sending end device divides the 26 OFDM symbols into four data segments, where the first data segment is the first 15 OFDM symbols, the second data segment includes the 16 th to 22 th OFDM symbols, the third data segment is the 23 th to 25 th OFDM symbols, and the fourth data segment includes the 26 th OFDM symbol, then the sending end device transmits the first data segment through 4 data streams, transmits the second data segment through 3 data streams, transmits the third data segment through 2 data streams, and transmits the fourth data segment through 1 data stream.

Optionally, an nth data segment of the first to mth data segments includes K_N×(2^M-N+1-1) OFDM symbols of a plurality of OFDM symbols,

where the floor is a round-down operation, and the N is 1,2, …, M.

That is to say, the nth data segment may be a data segment that can be paired into M-N +1 data streams in data segments other than the first to N-1 data segments in the to-be-transmitted data, that is, the nth data segment is a data segment that can be paired into M-N +1 data streams. Example (b)Such as, the N₁Is 26, M is 4, the radical K₁＝floor(26/(2⁴-1)) ═ 1, i.e. the number of OFDM symbols comprised by the first data segment is 15, then the first data segment comprises the 1 st to 15 th OFDM symbols of the data to be transmitted, K₂＝floor((26-1*15)/(2³-1)) ═ 1, i.e. the number of OFDM symbols comprised by the second data segment is 7, then the second data segment comprises the 16 th to 22 th OFDM symbols of the data to be transmitted, K₃＝floor((26-1*15-1*7)/(2²-1)) ═ 1, i.e. the number of OFDM symbols comprised by the third data segment is 3, then the third data segment comprises the 23 rd to the 25 th OFDM symbols of the data to be transmitted, K₄＝floor((26-1*15-1*7-1*3)/(2¹-1)) ═ 1, i.e. the number of OFDM symbols comprised by the fourth data segment is 1, then the fourth data segment comprises the 26 th OFDM symbol in the data to be transmitted. After determining the number of OFDM symbols included in each data segment, the transmitting end device transmits 15 OFDM symbols included in the first data segment through 4 data streams, transmits 7 OFDM symbols included in the second data segment through 3 data streams, transmits 3 OFDM symbols included in the third data segment through 2 data streams, and transmits 1 OFDM symbol included in the fourth data segment through 1 data stream.

Optionally, the M data segments generated after the data to be transmitted is divided may include data segments with zero OFDM symbol number, that is, when the data to be transmitted is divided, the length of the data segments generated by the division may be zero, for example, the data to be transmitted includes 7 OFDM symbols, and M is 4, so that the sending end device divides the data to be transmitted into four data segments (a first data segment to a fourth data segment), where the first data segment is a data segment that can be sent through 4 data streams, the second data segment is a data segment that can be sent through 3 data segments, the third data segment is a data segment that can be sent through 2 data streams, and the fourth data segment is a data segment that can be sent through 1 data stream. Since the 7 OFDM symbols can be paired into 3 data streams, the number of OFDM symbols included in the second data segment is 7, and thus the number of OFDM symbols included in the first data segment, the third data segment and the fourth data segment are all zero. For another example, the data to be transmitted includes 18 OFDM symbols, and M is 4, so that the first data segment includes 15 OFDM symbols, and the remaining 3 OFDM symbols may be transmitted through 2 data streams, so that the number of OFDM symbols included in the third data segment is 3, and thus the number of OFDM symbols included in the second data segment and the fourth data segment is zero.

Optionally, if the number of OFDM symbols included in the first data segment is not zero, and the number of OFDM symbols included in the second data segment to the mth data segment is zero, the sending end device sends the first data segment only through M number of streams, where the first data segment is the transmission number data.

That is to say, the number of OFDM symbols included in only the first data segment of the M data segments is not zero, and at this time, it may be considered that the data to be transmitted may be paired into M data streams, that is, the data to be transmitted may be transmitted through the M data streams.

Optionally, as an embodiment, if the number of OFDM symbols included in the nth data segment is equal to zero, the sending end device does not send the nth data segment.

S330, if the number of OFDM symbols included in the nth data segment is greater than zero, the sending end device sends the nth data segment through the M-N +1 data streams.

Specifically, if the number of OFDM symbols included in the nth data segment is greater than zero, that is, the number of OFDM symbols included in the nth data segment is not zero, the sending end device sends the nth data segment through the M-N +1 data streams, for example, the number of OFDM symbols included in the first data segment, the third data segment, and the fourth data segment is not zero, the sending end device may send the first data segment through M data streams, send the third data segment through M-2 data streams, and send the fourth data segment through M-3 data streams.

It should be understood that the sending end device sends the M data segments sequentially, that is, first sends the first data segment, then sends the second data segment, and finally sends the mth data segment, and if the M data segments include a data segment with a length of zero, the sending end device skips the data segment and sends a next data segment with a length different from zero.

Therefore, in the method for data processing in the embodiment of the application, the sending end device may divide the data to be transmitted into M data segments, where the M data segments include first to M data segments, and an nth data segment of the first to M data segments may be paired into M-N +1 data streams, and then the sending end device may send the nth data segment through the M-N +1 data streams, so as to solve a problem that an OFDM symbol included in the data to be transmitted cannot be paired.

It should be understood that the N is included as the data to be transmitted₁The OFDM symbols are generated by the bit stream that needs to be sent by the sending end device, so that the data to be transmitted is divided into M data streams for transmission, that is, the bit stream that needs to be sent originally is divided into M data streams for transmission. For the sake of simplicity, the OFDM symbols included in the data to be transmitted are divided into M data streams, and actually, the bit stream that needs to be originally transmitted is divided into M data streams for transmission. For example, if the bit stream to be transmitted is 1000 bits, the bit stream to be transmitted needs to be transmitted through 4 data streams, and the number of OFDM symbols generated by the 1000 bits of data is 10, then the 10 OFDM symbols are divided into four data segments, wherein the first data segment and the fourth data segment are 0 OFDM symbols, and the second data segment and the third data segment include OFDM symbols of 7 and 3, respectively, so that the 1000 bits are divided into 4 parts according to the corresponding ratio. The first and fourth parts are 0 bits, the second and third parts are 700 and 300 bits respectively, then the second part is transmitted by 3 data streams and the third part is transmitted by 2 data streams.

Optionally, the sending end device sends the nth data segment through the M-N +1 data streams, including:

the transmitting terminal device equally divides the Nth data segment into K_NA sub-data segment, wherein the kth sub-data segment includes the (k-1) (2)^M-N+1-1) +1 to k × (2)^M-N+1-1) ofOFDM symbol, K being 1,2, …, K_N；

The sending terminal equipment processes each sub data segment by adopting an EU-OFDM algorithm;

and the sending end equipment sequentially sends each processed subdata segment through the M-N +1 data streams.

That is, the transmitting end device may divide the nth data segment into K_NA sub-data segment, and then for the K_NThe sub-data section is processed by adopting an EU-OFDM algorithm, and then the processed K data are sequentially sent through M-N +1 data streams_NA sub-data segment.

Optionally, for a first data segment, the sending end sends the first data segment through the M data streams, which may include:

the sending end equipment averagely divides the first data segment into K₁A sub-data segment, wherein the kth sub-data segment includes the (k-1) (2)^M-1) +1 to k × (2)^M-1) OFDM symbols, K being 1,2, … K₁；

and the sending end equipment sequentially sends each processed subdata segment through the M data streams.

Specifically, if the number of OFDM symbols included in the first data segment is greater than zero, the sending end device may equally divide the first data segment into K₁Sub-data segments, each sub-data segment having a length of 2^M1 OFDM symbol, wherein the kth sub-data segment comprises the (k-1) (2)^M-1) +1 to k × (2)^M-1) OFDM symbols, K being 1,2, … K₁. For example, the first data segment includes a number of OFDM symbols of 60, M-4, and K₁To 60/15 ═ 4, therefore, the first data segment may be divided into 4 sub-data segments, where the first sub-data segment includes the 1 st OFDM symbol to the 15 th OFDM symbol, the second sub-data segment includes the 16 th OFDM symbol to the 30 th OFDM symbol, the third sub-data segment includes the 31 st OFDM symbol to the 45 th OFDM symbol, and the fourth sub-data segment includes the 46 th OFDM symbol to the 60 th OFDM symbol.

Then, the sending end device executes EU-OFDM algorithm processing on each sub data segment to generate each processed sub data segment, and then sequentially sends each processed sub data segment through the M data streams. For example, the first data segment is divided into three sub-data segments, including a first sub-data segment, a second sub-data segment and a third sub-data segment, the sending end device performs EU-OFDM algorithm processing on the three sub-data segments to generate a processed first sub-data segment, a processed second sub-data segment and a processed third sub-data segment, then the sending end device sends the processed first sub-data segment through the M data streams, then sends the processed second sub-data segment through the M data streams, and finally sends the processed third sub-data segment through the M data streams.

Hereinafter, referring to fig. 4, the EU-OFDM algorithm will be described by taking an example in which the first data segment includes 30 OFDM symbols and is transmitted through 4 data streams (data stream 1 to data stream 4).

For each data stream, the original input signal is a bit stream, after the bit stream enters each data stream, the sending end device performs channel coding, QAM modulation, and serial-to-parallel conversion on the bit stream, the above processing procedure may be the same as the processing method in the prior art, which is not described here again, but when mapping the QAM symbols after serial-to-parallel conversion onto the subcarriers, the Hermitian Symmetry principle needs to be followed, that is, the QAM symbols after serial-to-parallel conversion need to be mapped onto the subcarriers, that is, the QAM symbols after serial-to-parallel conversion need to

Where N is the number of subcarriers, m is the subcarrier number, X_mIs a QAM symbol modulated on subcarrier m. By Hermitian symmetry is meant that the QAM symbols modulated on the subcarrier N-m need to be the conjugate transpose of the QAM symbols on the subcarrier m. The Hermitian symmetry principle is followed when QAM symbols are mapped to ensure that the output signal of the IFFT is real number rather than complex number.

Thereafter, each data stream is subjected to IFFT, parallel-to-serial conversion, and cyclic prefix addition, which is the same as the processing method of the related art, and then repetition of the signal is required.

As can be seen from the above description, the first data segment comprises 30 OFDM symbols, generallyAfter transmitting 4 data streams, the first data segment may be divided into two sub-data segments, each of which includes 15 OFDM symbols, as shown in fig. 4, the first sub-data segment includes 1 st to 15 th OFDM symbols, the second sub-data segment includes 16 th to 30 th OFDM symbols, for a data stream 1, the 1 st to 8 th OFDM symbols in the first sub-data segment are transmitted through the data stream 1, and each OFDM symbol needs to be repeated for 2 times, the second repetition is an inverse repetition of an original signal, and then all parts of the signal smaller than zero are set to zero; for data stream 2, the 9 th to 12 th OFDM symbols in the first sub-data segment are transmitted via data stream 2, and 2 repetitions are required for each OFDM symbol²4 times, wherein the first two times are simple repetition of the original signal, the last two times are inverse repetition of the original signal, and then all parts of the signal which are smaller than zero are set to zero; for data stream 3, the 13 th to 14 th OFDM symbols in the first sub-data segment are transmitted via the data stream 3, and 2 repetitions are required for each OFDM symbol³The first four times are simple repetition of the original signal, the last four times are inverse repetition of the original signal, and then all parts of the signal which are smaller than zero are set to zero; for data stream 4, the 15 th OFDM symbol in the first sub-data segment is transmitted via the data stream 4, and 2 repetitions are required for each OFDM symbol⁴The first eight times are simple repetitions of the original signal, the last eight times are inverse repetitions of the original signal, and then all parts of the signal smaller than zero are zeroed. I.e. for the nth data stream, 2 repetitions for each OFDM symbol are required^NSecond, first 2^N-1For simple repetition of the original signal, last 2^N-1To invert the original signal, the portions of the signal that are less than zero are then all zeroed out. The 4 data streams are then summed to produce the final OFDM signal.

Optionally, the data frame sent by the sending end device to the receiving end device may include the number N of OFDM symbols included in the data to be transmitted₁And the maximum data stream number M for transmitting the data to be transmitted.

Specifically, theIn other words, the data to be transmitted includes the number N of OFDM symbols₁And the maximum data stream number M for transmitting the data to be transmitted may be carried in the header portion of the data frame, where the number N of OFDM symbols included in the data to be transmitted₁The length information of the data to be transmitted may be considered as length information of the data to be transmitted, and optionally, the length information of the data to be transmitted and the maximum data stream number M for sending the data to be transmitted may also be the number of bytes of the data to be transmitted, where the length information of the data to be transmitted and the maximum data stream number M are used by the receiving end device to demodulate real data in the data portion of the data frame.

Optionally, the length information of the data included in the header portion of the data frame may also be the number of OFDM symbols included in the superimposed signal of the M data segments processed by the EU-OFDM algorithm.

Optionally, the data portion of the data frame may include an OFDM signal generated by superimposing the M data streams processed by the EU-OFDM algorithm.

Optionally, the header portion of the data frame may further include information such as a code rate, an adjustment order, and the number of used OFDM subcarriers.

Optionally, the data frame further includes algorithm indication information, where the algorithm indication information indicates that the sending-end device uses a first algorithm to process the data to be transmitted.

Specifically, the header portion of the data frame may further include algorithm indication information, where the algorithm indication information may indicate which algorithm the sending-end device processes the data to be transmitted through, and the algorithm indication information may be used for the receiving-end device to adopt a corresponding demodulation method according to the algorithm indication information.

For example, the data frame includes the number information N of the OFDM symbols included in the data to be transmitted₁And maximum data stream number information M, N for transmitting the data to be transmitted₁For 26, M is 4, that is, the data to be transmitted includes 26 OFDM symbols, and needs to be sent through 4 data streams, and the algorithm indication information indicates that the sending end device uses the first algorithm to process the data to be transmitted, so that the receiving end device may be enabled to communicate with each otherThe length information, code rate, modulation order, used OFDM subcarrier number and other information of the data to be transmitted included in the data frame are converted into the OFDM symbol number N included in the data to be transmitted₁And the length of each data segment and the number of streams used for each data segment are known according to the above-described data segment dividing method. The receiving end device may then receive each data segment in turn based on the information.

For each data segment, if transmitted over more than 1 data stream, data stream 1 is demodulated first, after demodulation is successful, data stream 1 is subtracted from the received signal, then data stream 2 is demodulated, and then demodulation continues until all demodulation is successful.

Fig. 5 illustrates a method 500 for data processing according to another embodiment of the present application, as shown in fig. 5, the method 500 including:

s510, the sending end equipment generates N₁Data to be transmitted of OFDM symbols, N₁Is a positive integer;

in S510, the sending end device may generate the inclusion N by using the method described in S310 of the method 300 shown in fig. 3₁Data to be transmitted for each OFDM symbol. For brevity, no further description is provided herein.

S520, the sending end equipment processes the data to be transmitted by adopting a second algorithm, and the N is₁Supplementing zero or invalid bits after one OFDM symbol enables the number of the supplemented OFDM symbols included in the data to be transmitted to be divided by 2^M-1, M being the maximum number of data streams used for transmitting the data to be transmitted;

s530, the sending end device sends the supplemented data to be transmitted through the M data streams.

That is to say, the sending end device may determine that the number of OFDM symbols included in the data to be transmitted cannot be paired into M data streams, and determine that the N data streams include the M OFDM symbols₁Supplementing zero or invalid bits after every OFDM symbol, thereby enabling the number of the supplemented OFDM symbols included in the data to be transmitted to be divided by 2^M1, i.e. OFDM symbols that make up the data to be transmittedThe number of numbers can be paired into M data streams. For example, the N₁＝26，M＝4，2^M1-15, then zero or invalid bits may be padded after the 26 symbols, so that the number of padded OFDM symbols is 30, and thus 4 data streams may be paired. Then, the sending end device sends the supplemented data to be transmitted through the M data streams,

optionally, the sending end device sends the supplemented data to be transmitted through the M data streams, including:

the sending end equipment averagely divides the supplemented data to be transmitted into K sub-data segments, wherein K is the number of OFDM symbols included in the supplemented data to be transmitted divided by 2^M-1, the kth sub-data segment comprising the (k-1) (2)^M-1) +1 to k × (2)^M-1) OFDM symbols;

Specifically, after the sending-end device supplements zero or invalid bits to enable the supplemented data to be transmitted to be paired into M data streams, the sending-end device divides the supplemented data to be transmitted into K sub-data segments, then processes each sub-data segment by using the EU-OFDM algorithm described in the method 300, and then sequentially sends each processed sub-data segment through the M data streams. For brevity, no further description is provided herein.

Specifically, the header portion of the data frame may include length information of the data to be transmitted and a maximum data stream number M for sending the data to be transmitted, where the length information of the data to be transmitted may be the number N of OFDM symbols included in the data to be transmitted₁Or may be data to be transmittedThe number of bytes included, the length information of the data to be transmitted, and the maximum data stream number M for sending the data to be transmitted may be used by the receiving end device to demodulate the real data of the data portion of the data frame.

Optionally, the data frame further includes algorithm indication information, where the algorithm indication information indicates that the sending-end device uses a second algorithm to process the data to be transmitted.

For example, the data frame includes the number information N of the OFDM symbols included in the data to be transmitted₁And a maximum number M, N of data streams for transmitting the data to be transmitted₁For 26, the M is 4, that is, the data to be transmitted includes 26 OFDM symbols, and needs to be sent through 4 data streams, where the algorithm indication information indicates that the sending end device uses the second algorithm to process the data to be transmitted, and then the receiving end device may convert which bits of the data portion in the data frame are supplemental bits, so that the supplemental bits may be deleted, and then demodulate the valid bits of the data portion in the data frame.

Therefore, according to the method for processing data in the embodiment of the application, when the sending end device determines that the OFDM symbols included in the data to be transmitted cannot be paired into M data streams, zero or invalid bits may be supplemented after the data to be transmitted, so that the number of the supplemented OFDM symbols included in the data to be transmitted can be paired into M data streams, and then the sending end device sends the supplemented data to be transmitted through the M data streams, so that the problem that the OFDM symbols included in the data to be transmitted cannot be paired can be solved.

FIG. 6 illustrates a method 600 for data processing according to yet another embodiment of the present application, as shown in FIG. 6, the method 600 including:

s610, the sending end equipment generates a packetDraw N₁Data to be transmitted of OFDM symbols, N₁Is a positive integer;

specifically, the sending end device may generate the inclusion N by using the method described in S310 in the method 300 shown in fig. 3₁Data to be transmitted for each OFDM symbol. For brevity, no further description is provided herein.

S620, the sending end equipment processes the data to be transmitted by adopting a third algorithm, wherein the third algorithm comprises that the sending end enables the number of the OFDM symbols included in the adjusted data to be transmitted to be divided by 2 by adjusting the coding rate^M-1, M being the maximum number of data streams used for transmitting the data to be transmitted;

s630, the sending-end device sends the adjusted data to be transmitted through the M data streams.

That is to say, when the sending end device determines that the number of OFDM symbols included in the to-be-transmitted data cannot be paired into M data streams, the sending end device may adjust the coding rate, so that the adjusted number of OFDM symbols included in the to-be-transmitted data can be divided by 2^M1, i.e. enabling the number of OFDM symbols comprised by the adjusted data to be transmitted to be paired into M data streams. For example, the sender apparatus has 1000 bits to transmit, encodes with a code rate of 1/2, and modulates with a modulation order of 16QAM, so that the number of bits output by the encoder is 2000 bits, and after 16QAM modulation (each 16QAM symbol may carry 4 bits of information), is 2000/4 — 500 16QAM symbols. Assuming that there are 128 subcarriers per OFDM symbol, of which 50 are available, each OFDM symbol may carry 50 16QAM symbols. The data to be transmitted eventually occupies 500/50-10 OFDM symbols. If the 10 OFDM symbols need to use 4 data streams for transmission, 15 OFDM symbols are needed to pair into 4 data streams.

Optionally, the sending-end device may employ a method of reducing the encoder rate, so that the adjusted data to be transmitted can be paired into M data streams. For the foregoing example, if 15 OFDM symbols are to be generated, 15 OFDM symbols need to carry 15 × 50 to 750 16QAM signals, where the 750 16QAM signals include 750 × 4 to 3000 bits, and the originally input number of bits is 1000 bits, so that a code rate of 1/3 may be adopted, so that the number of coded bits reaches 3000 bits. Finally, the data to be transmitted after modulation coding can exactly include 15 OFDM symbols, so that 4 data streams can be paired.

Optionally, the sending end device may also adopt a method of increasing the encoder rate, so that the adjusted data to be transmitted can be paired into M data streams. For example, the sending end device needs to send the 10 OFDM symbols by using 3 data streams, and then needs 7 OFDM symbols to pair into 3 data streams. A higher code rate encoder may be employed so that the number of OFDM symbols generated may be reduced. The 7 OFDM symbols carry 7x 50-350 QAM signals, including 350x 4-1400 bits, and the original bit number is 1000, so that a code rate of 5/7 can be adopted, so that the number of coded bits reaches 1400 bits. Finally, the data to be transmitted after modulation coding is exactly composed of 7 OFDM symbols, so that 3 data streams can be paired.

Optionally, the sending-end device may also use a signal repetition mode to enable the adjusted data to be transmitted to be paired into M data streams. In the above example, the number of bits after coding with the code rate of 1/2 is 2000 bits, and in order to generate 15 OFDM symbols, the coded bits may be repeated, for example, the first 1 to 1000 bits may be copied to the rear of the 2000 th bit, so that the number of bits after coding may be extended to 3000. Further, the 3000 bits of data after modulation coding can generate exactly 15 OFDM symbols, so that 4 data streams can be paired.

Optionally, the sending end device may further use a mode of puncturing data (i.e., deleting partial data) to enable the adjusted data to be transmitted to be paired into M data streams, and if 3 streams are required to transmit the 10 OFDM symbols, 7 OFDM symbols are required to be paired into 3 data streams. Therefore, the data after encoding can be punctured, the bit length after encoding with the code rate of 1/2 is 2000 bits, and through puncturing, the encoded 2000 bits can be reduced to 1400 bits. Specifically, every 10 bits can be used, 3 bits are punctured, and 7 bits are left. After the puncturing operation, 1400 bits may thus remain. The 1400 bits may result in 7 OFDM symbols, which may be paired into 3 data streams.

Optionally, the sending end device sends the adjusted data to be transmitted through the M data streams, including:

the sending end equipment averagely divides the adjusted data to be transmitted into K sub-data segments, wherein K is the number of OFDM symbols included by the adjusted data to be transmitted divided by 2^M-1, the kth sub-data segment comprising the (k-1) (2)^M-1) +1 to k × (2)^M-1) OFDM symbols;

Specifically, after the sending-end device adjusts the coding rate so that the adjusted data to be transmitted can be paired into M data streams, the sending-end device divides the adjusted data to be transmitted into K sub-data segments, then processes each sub-data segment by using the EU-OFDM algorithm described in the method 300, and finally sequentially sends each processed sub-data segment through the M data streams. For brevity, no further description is provided herein.

Optionally, the data frame sent by the sending end device to the receiving end device may include the number of OFDM symbols included in the adjusted data to be transmitted, the adjusted coding rate, and the maximum data stream number M for sending the data to be transmitted.

Specifically, the header portion of the data frame may include the number of OFDM symbols included in the adjusted data to be transmitted, the adjusted coding rate, and the maximum data stream number M for transmitting the data to be transmitted, where the information may be used by the receiving end device to demodulate the real data of the data portion of the data frame.

Optionally, the length information of the adjusted data to be transmitted included in the header portion of the data frame may also be bit number information included in the adjusted data to be transmitted, the data portion of the data frame may include a signal generated by superimposing the adjusted data to be transmitted processed by the EU-OFDM algorithm,

optionally, the data frame further includes algorithm indication information, where the algorithm indication information indicates that the sending-end device uses a third algorithm to process the data to be transmitted.

Therefore, in the method for processing data according to the embodiment of the application, the sending end device can make the number of the OFDM symbols included in the adjusted data to be transmitted be capable of being paired into M data streams by adjusting the coding rate, and then the sending end device sends the supplemented data to be transmitted through the M data streams, so that the problem that the OFDM symbols included in the data to be transmitted cannot be paired can be solved.

In the above, the method for data processing according to the embodiment of the present application is described in detail with reference to fig. 3 to 6. Hereinafter, an apparatus for data processing according to an embodiment of the present application will be described in detail with reference to fig. 7 and 8.

An embodiment of the present application provides a sending end device, and a schematic block diagram of the sending end device may be as shown in fig. 7. Fig. 7 is a schematic block diagram of a transmitting-end device 700 according to an embodiment of the present application. As shown in fig. 7, the transmitting-end device 700 includes: a processing unit 710 and a transmitting unit 720.

Specifically, the transmitting end device 700 may correspond to a transmitting end device in the method 300, the method 500, or the method 600 for data processing according to the embodiment of the present application, and the transmitting end device 700 may include units of the method performed by the transmitting end device for performing the method 300 in fig. 3, the method 500 in fig. 5, or the method 600 in fig. 6. Moreover, each unit and the other operations and/or functions in the sending-end device 700 are respectively for implementing the corresponding flows of the method 300 in fig. 3, the method 500 in fig. 5, or the method 600 in fig. 6, and are not described again here for brevity.

An embodiment of the present application further provides a sending end device, and a schematic block diagram of the sending end device may be as shown in fig. 8. Fig. 8 is a schematic block diagram of a transmitting-end device 800 according to another embodiment of the present application. As shown in fig. 8, the transmitting-end device 800 includes: a transceiver 810, a processor 820, a memory 830, and a bus system 840. The transceiver 810, the processor 820 and the memory 830 are connected by a bus system 840, the memory 830 is used for storing instructions, and the processor 820 is used for executing the instructions stored in the memory 830 to control the transceiver 810 to transmit and receive signals. The memory 830 may be configured in the processor 820, or may be independent of the processor 820.

Specifically, the transmitting end device 800 may correspond to the transmitting end device in the method 300, the method 500, or the method 600 for data transmission according to the embodiment of the present application, and the transmitting end device 800 may include entity units for performing the methods performed by the transmitting end device in the method 300 in fig. 3, the method 500 in fig. 5, or the method 600 in fig. 6. Moreover, each entity unit and the other operations and/or functions in the sending-end device 800 are respectively for implementing the corresponding flows of the method 300 in fig. 3, the method 500 in fig. 5, or the method 600 in fig. 6, and are not described herein again for brevity.

It should be understood that the processor in the embodiments of the present application may be an integrated circuit chip having signal processing capability. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a Central Processing Unit (CPU), or other general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA), or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware component. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software in the decoding processor. The software may be in ram, flash, rom, prom, or eprom, registers, among other storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will also be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. Among them, the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic random access memory (Dynamic RAM, DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (Double Data SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It will also be appreciated that the bus system may include a power bus, a control bus, a status signal bus, etc., in addition to the data bus. For clarity of illustration, however, the various buses are labeled as a bus system in the figures.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The steps of the method for data transmission disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software in a processor. The software may be in ram, flash, rom, prom, or eprom, registers, among other storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor. To avoid repetition, it is not described in detail here.

Embodiments of the present application also provide a computer-readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a portable electronic device comprising a plurality of application programs, enable the portable electronic device to perform the method of the embodiment shown in fig. 3.

Embodiments of the present application also provide a computer-readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a portable electronic device comprising a plurality of application programs, enable the portable electronic device to perform the method of the embodiment shown in fig. 5.

Embodiments of the present application also provide a computer-readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a portable electronic device comprising a plurality of application programs, enable the portable electronic device to perform the method of the embodiment shown in fig. 6.

It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method for data processing, comprising:

sending end equipmentGenerating includes N₁Data to be transmitted of OFDM symbols, N₁Is a positive integer;

the sending end equipment processes the data to be transmitted by adopting a first algorithm, the data to be transmitted is divided into M data segments, M is the maximum data stream number for sending the data to be transmitted, the M data segments comprise a first data segment to an Mth data segment, and the quantity of OFDM symbols included in the Nth data segment from the first data segment to the Mth data segment is (2)^M-N+1-an integer multiple of 1);

and if the number of the OFDM symbols included in the Nth data segment is greater than zero, the sending end equipment sends the Nth data segment through M-N +1 data streams.
The method of claim 1, further comprising:

and if the number of the OFDM symbols included in the Nth data segment is equal to zero, the sending end equipment does not send the Nth data segment.
The method of claim 1 or 2, wherein the nth data segment comprises K_N×(2^M-N+1-1) OFDM symbols, where N ═ 1,2, …, M, and the floor is a rounding down operation.
The method of claim 3, wherein the transmitting end device transmits the nth data segment through the M-N +1 data streams, including:

the sending end equipment averagely divides the Nth data segment into K_NA sub-data segment, wherein the kth sub-data segment includes the (k-1) (2)^M-N+1-1) +1 to k × (2)^M-N+1-1) OFDM symbols, K being 1,2, …, K_N；

The sending end equipment processes each sub data segment by adopting an enhanced unipolar EU-OFDM algorithm;

and the sending end equipment sequentially sends each processed subdata segment through the M-N +1 data streams.
The method according to any one of claims 1 to 4, wherein the number N of OFDM symbols included in the data to be transmitted is included in a data frame sent by the sending end device to a receiving end device₁And the maximum data stream number M for sending the data to be transmitted.
The method according to claim 5, wherein the data frame further includes algorithm indication information, and the algorithm indication information indicates that the sending-end device is to process the data to be transmitted by using a first algorithm.
A method for data processing, comprising:

the sending end equipment generates N₁Data to be transmitted of OFDM symbols, N₁Is a positive integer;

the sending end equipment processes the data to be transmitted by adopting a second algorithm, and N is₁Supplementing zero or invalid bits after one OFDM symbol enables the number of the supplemented OFDM symbols included in the data to be transmitted to be divided by 2^M-1, said M being the maximum number of data streams used for transmitting said data to be transmitted;

and the sending end equipment sends the supplemented data to be transmitted through the M data streams.
The method according to claim 7, wherein the number N of OFDM symbols included in the data to be transmitted is included in a data frame sent by the sending end device to a receiving end device₁And the maximum data stream number M for sending the data to be transmitted.
The method of claim 8, wherein the data frame further includes algorithm indication information, and wherein the algorithm indication information indicates that the sending-end device is to process the data to be transmitted by using a second algorithm process.
A method for data processing, comprising:

the sending end equipment generates N₁The number of data to be transmitted of the OFDM symbols, N₁Is a positive integer;

the sending end equipment processes the data to be transmitted by adopting a third algorithm, wherein the third algorithm comprises that the sending end enables the number of OFDM symbols included in the adjusted data to be transmitted to be divided by 2 by adjusting the coding rate^M-1, said M being the maximum number of data streams used for transmitting said data to be transmitted;

and the sending end equipment sends the adjusted data to be transmitted through the M data streams.
The method according to claim 10, wherein a data frame sent by the sending end device to a receiving end device includes the number of OFDM symbols included in the adjusted data to be transmitted, the adjusted coding rate, and the maximum data stream number M for sending the data to be transmitted.
The method of claim 11, wherein the data frame further includes algorithm indication information, and wherein the algorithm indication information indicates that the sending-end device is to process the data to be transmitted by using a third algorithm.
A transmitting-end device, comprising:

a processing unit for generating a signal including N₁Data to be transmitted of OFDM symbols, N₁Is a positive integer;

the processing unit is further configured to process the data to be transmitted by using a first algorithm, and divide the data to be transmitted into M data segments, where M is a maximum data stream number for sending the data to be transmitted, and the M data segments include a first numberData segments to an Mth data segment, an Nth data segment of the first to Mth data segments including a number of OFDM symbols of (2)^M-N+1-an integer multiple of 1);

a sending unit, configured to send the nth data segment through the M-N +1 data streams when the number of OFDM symbols included in the nth data segment is greater than zero.
The sender device of claim 13, wherein the sending unit is further configured to:

and under the condition that the number of OFDM symbols included in the Nth data segment is equal to zero, not transmitting the Nth data segment.
The sender device of claim 13 or 14, wherein the nth data segment comprises K_N×(2^M-N+1-1) OFDM symbols, where N ═ 1,2, …, M, and the floor is a rounding down operation.
The sender device of claim 12 or 13, wherein the processing unit is further configured to:

averagely dividing the Nth data segment into K_NA sub-data segment, wherein the kth sub-data segment includes the (k-1) (2)^M-1) +1 to k × (2)^M-1) OFDM symbols, said K being 1,2, … K_N；

Processing each sub data segment by adopting an enhanced unipolar EU-OFDM algorithm;

and sequentially sending each processed subdata segment through the M-N +1 data streams.
The sending end device according to any one of claims 14 to 16, wherein a number N of OFDM symbols included in the data to be transmitted is included in a data frame sent by the sending end device to a receiving end device₁And the maximum data stream number M for sending the data to be transmitted.
The sender device of claim 17, wherein the data frame further includes algorithm indication information, and the algorithm indication information indicates that the sender device is to process the data to be transmitted by using a first algorithm.
A transmitting-end device, comprising:

a processing unit for generating a signal including N₁Data to be transmitted of OFDM symbols, N₁Is a positive integer;

the processing unit is further configured to process the data to be transmitted by using a second algorithm, where N is₁Supplementing zero or invalid bits after one OFDM symbol enables the number of the supplemented OFDM symbols included in the data to be transmitted to be divided by 2^M-1, said M being the maximum number of data streams used for transmitting said data to be transmitted;

and the sending unit is used for sending the supplemented data to be transmitted through the M data streams.
The sending-end device of claim 19, wherein a data frame sent by the sending-end device to a receiving-end device includes N, which is a number of OFDM symbols included in the data to be transmitted₁And the maximum data stream number M for sending the data to be transmitted.
The sender device of claim 20, wherein the data frame further includes algorithm indication information, and the algorithm indication information indicates that the sender device is to process the data to be transmitted by using a second algorithm process.
A transmitting-end device, comprising:

a processing unit for generating a signal including N₁The number of data to be transmitted of the OFDM symbols, N₁Is a positive integer;

the processing unit is also adapted to employProcessing the data to be transmitted by a third algorithm, wherein the third algorithm comprises that the sending end enables the number of OFDM symbols included in the adjusted data to be transmitted to be divided by 2 completely by adjusting the coding rate^M-1, said M being the maximum number of data streams used for transmitting said data to be transmitted;

and the sending unit is used for sending the adjusted data to be transmitted through the M data streams.
The sending end device of claim 22, wherein a data frame sent by the sending end device to a receiving end device includes the number of OFDM symbols included in the adjusted data to be transmitted, an adjusted coding rate, and the maximum data stream number M for sending the data to be transmitted.
The sender device of claim 23, wherein the data frame further includes algorithm indication information, and the algorithm indication information indicates that the sender device is to process the data to be transmitted by using a third algorithm.